WPFINotifyPropertyChanged构建数据双向绑

定义一个Person实体类：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;

namespace Wpf
{
    public class Person : INotifyPropertyChanged
    {
        private String _name;
        private int _age;

        public event PropertyChangedEventHandler PropertyChanged;
        public void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
            {
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }

        public String Name
        {
            set
            {
                _name = value;
                this.OnPropertyChanged(nameof(Name));//对Name进行监听
            }
            get
            {
                return _name;
            }
        }

        public int Age
        {
            set
            {
                _age = value;
                this.OnPropertyChanged(nameof(Age));
            }
            get
            {
                return _age;
            } 
        }
    }
}

        
        

这允许更改数据源。UI即使实时更改，前端用户如果手动修改数据源也会刷新；